Bending-machine



(No Model.) 2 Sheets-Sheet 1.

. W. W. sToKng.

BENDING MACHINE. No. 300,159. Patented June 10, 1884 WITNESSES: INVENTORI I I 4 Q ATTORNEYS.

(No Model.) 2 Sheets-Sheet 2.

W. W. STOKES.

BENDING MAGHINE.

No. 300,159. Patented June 10, 1884.

ATTORNEYS.

WITNESSES UNTTED STATES ATENT Tries.

W'ILLIAM VVA TSON STOKES, OF ANN A, ILLINOIS.

BENDlNG--MACHINE.

SPECIFICATION forming part of Letters Patent No. 300,159, dated June 10,1884.

Application filed January 28, 1884. (No model.) I

To aZZ whom it may concern;

Be it known that 1, WILLIAM W. SroKEs, of Anna, county of Union,Illinois, have invented a new and Improved Bending-Machine, of which thefollowing is a full, clear, and exact description.

My invention consists of an improved contrivanee of bending-levers,anvil-block, adjustable formers, and a gage whereby it is designed toprovide a simple and efficient machine adapted for the use ofblacksmiths, carriage-makers, and other iron-workers to bend stirrup,clip, and other irons by hand,- all as hereinafter fully described.

Reference is to be had'to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective view of my improved bending-machine. Fig. 2 isa side elevation of the pivot-bolt and section of a sleeve employed forthe pivot of the principal bending-lever. Fig. 3 is a side elevation andsection of the washer employed for the pivot of the secondary lever.Fig. 4 is a side elevatron of a former to be used on the principalbending-lever. Fig. 5 is a plan view of the bending-machine, showing themanner of bending a clip. Fig. 6 is a plan view of the machine, showingthe manner of bending a bar into an obtuse angle; and Fig. 7 is a planof the machine, showing the manner of bending a bar into two reverseright angles.

I construct a suitable bed-plate, a, of meta with three parallel slots,b c, and d, and lo cated with relation to eachother as shown, orsubstantially so, for the purpose of adjustably connecting the workingparts. I also provide said'bed-plate with an anvil-block, e, and agage-bar, f, both of which are firmly attached to said bed-plate; andthe gage-bar has a shifting gage-stop, g, fitted to it for being set onsaid bar at any point for gaging the distance of the bends from the endsof the bars.

Alongside of the anvil-block e, I arrange a former-block, 71, having onesquare end, i, and one half-round end, j, and I secure the same with abolt, is, nut Z, and washer m, so as to bind it fast to the bed-plateeither parallel with the anvil-block e, as in Figs. 1, 5, and 7, orobliquely to it, as in Fig. 6, the bolt 70 ex tending down through thebed-plate and drawing against the under side of the said plate. I use asquare washer for this bolt and construct it with a rib, 0, Fig. 1, onthe lower side as wide as the slot at through the former,

for the bolt to projectinto the slot for bind:

ing the block more firmly and preventing the washer from turning withthe nut.

I propose to employ formers h of different forms and sizes,according tothe different forms and sizes of bars and the bends to be made in them,said forms to be changed at will by removing the nut Z and washer m,-and in order to prevent the bolt 70 from dropping out of its place-whilechanging the formers, I propose to provide akeeper consisting of a smallplate, 10, through which the bolt passes, and whichI fit into the slot1;, so that it will not drop out, by wedging it fast in said slot orsecuring said plate therein by any other means. The bolt is is madesquare or with flat'sides in the parts fitting the slot b of thebed-plate and the slot n of former, to effectually prevent the formerfromturning by the stress on it of the bars being bent.

In the slot (Z, I fit a pivot-bolt, q, for the fulcrum-pivot of the mainbending-lever 8, said bolt being adjustable along the slot for locat--when worn loose.

A short distance along the lever s from the pivot-bolt g said lever isrecessed in the lower side to receive the forming-block u and the levero between it and the surface of the bedplate, and said lever also has avertical longitudinal slot, 10, along it a suitable distance from theshoulder of the recess, for inserting the bolts 00 and y, which connectthe lever and former a, respectively, to the lever s. Said bolts areflat-sided in the parts passing through the slot 10 of lever s, toprevent them from turning; but the pivot-bolt w of the lever o is roundon the part on which said lever turns, and it has a small countersunkhead, 2, to enter the hole of the lever flush with the under side, andallow the lever to work against the surface of the table. The former ais to be set close to the end of lever 11 when said lever is set at adistance from the shoulder a, and is used for bending a bar aroundformer 71., and forms an adjustable prolongation of the side wall oflever 3 back of the shoulder a, which prevents the bar from bending intothe cavity behind the ends of the lever 12, as it would in bendingaround the angle of former it without said former a; but said former ais more particularly employed when a reverse angle is to be made, asrepresented in Fig. 7, the lever 11 being thus disconnected from lever sand connected to the bed-plate by inverting it and passing its bolt .00through the slot 0. In such use of the machine the pivot-bolt q ofthelever s will be shifted along more to the back edge of the bed-plate,for enabling said former a to be suitably placed with relation to formerh. \Vhen the bar is to be bent in the form of a clip, as in Fig. 5, orinto an obtuse angle, as in Fig. (i, the former a will not be used. Itwill be seen that the lover 8 bonds the bar 1) around to the end offormer 7L, and then the lever 12 bends it around to the'side of saidformer for making clips, or around the former a to make the reverseangles, as the case may be.

The lever 5 may be fastened to the bed by shifting its bolt q tothe slot0, when it may be desired. The bed a. will have a strong lug formed onthe under side, suitably for fasten- 1ng it to a strong bench such asrepresented in Fig. 1.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. The combination of the anvil e, former h, and lovers, with a bed-plate, a, having slots 1) 0, said former h having a slotn, for its fastening-bolt, and said former and lever being adjustablealong the slots of the bed-plate, and former h'being adapted to be setobliquely to the anvil-block, substantially as described.

2. The combination of the anvil-block e, adjustable former h, and levers, with bed-plate (0, having slots 1) and 0, and the lever 1), saidlever 11 being pivoted to and adjustable along.

lever s. substantially as described.

3. The combination of the anvil-block 6, adjustable former h, lever s,former a, and lever r, with the bed-plate a, having slots Z) c (1, saidlever c and former a being adjustably connected to said lever s, andsaid lever 8 being removable to and connectable in slot 0, substantiallyas described.

l. The combination of the bed-plate a, anvil-block 0, adjustable formerh, levers s and c, and the gage-bar f and adjustable stopgage g,substantially as described.

JAMES DEWI'lT, J. G. WVILLOUGHBY.

